[ttyprintk]

Two advantages to this:

- muscle memory is easy to change

- format is easy to migrate

One migration would be sqlite, which has advantages:

- found everywhere with Python

- A custom command to slot in for mkdir would be maybe 10 lines

- sharing is straightforward

- if kept simple-enough, two unrelated databases can be manually merged offline with two `sqlite dump` text files. I do the manual merge all the time within vim:

    autocmd FileType sql let &makeprg='sqlite3 %:r:s/-[0-9]*//:S.db ".read %:S"'

This will feed your vim buffer into a probably-new database